Does biomedical research need another moratorium?
D000818:Animals; D002986:Clinical Trials as Topic; D035082:Federal Government; D033161:Government Regulation; D006801:Humans; D012190:Retroviridae / Q000472:pathogenicity; D018570:Risk Assessment; D012307:Risk Factors; D013552:Swine / Q000821:virology; D014180:Transplantation / Q000331:legislation & jurisprudence*; D014183:Transplantation, Heterologous; D014481:United States; D014486:United States Food and Drug Administration / Q000331:legislation & jurisprudence